One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(21,22)(23,28)(24,35)(25,30)(26,40)(27,31)(29,38)(32,49)(33,43)(34,44)(36,52)(37,48)(39,45)(41,47)(42,51)(46,50)(2,4)(5,6)(7,13)(8,11)(9,12)(10,15)(14,19)(16,18)(17,20)(21,23,27,33)(22,28,31,43)(24,36,37,32)(25,39,26,34)(29,46,47,42)(30,45,40,44)(35,52,48,49)(38,50,41,51)(5,7,9,15)(6,10,12,13)(8,16,17,14)(11,19,20,18)(21,24,27,37)(22,29,31,47)(23,32,33,36)(25,38,26,41)(28,42,43,46)(30,48,40,35)(34,50,39,51)(44,49,45,52)(5,8,9,17)(6,11,12,20)(7,14,15,16)(10,18,13,19)(23,33)(24,37)(28,43)(29,47)(34,39)(35,48)(38,41)(44,45)(6,12)(10,13)(11,20)(18,19)(21,25,27,26)(22,30,31,40)(23,34,33,39)(24,38,37,41)(28,44,43,45)(29,48,47,35)(32,50,36,51)(42,49,46,52)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.